//
// DotNetNuke - http://www.dotnetnuke.com
// Copyright (c) 2002-2010
// by Perpetual Motion Interactive Systems Inc. ( http://www.perpetualmotion.ca )
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
//

using System;
using System.Net;
namespace DotNetNuke.Common.Utils
{
	public class NetworkUtils
	{
		public static string GetAddress(string Host, AddressType AddressFormat)
		{
			string IPAddress = string.Empty;
			System.Net.Sockets.AddressFamily addrFamily = System.Net.Sockets.AddressFamily.InterNetwork;
			switch (AddressFormat) {
				case AddressType.IPv4:
					addrFamily = System.Net.Sockets.AddressFamily.InterNetwork;
					break;
				case AddressType.IPv6:
					addrFamily = System.Net.Sockets.AddressFamily.InterNetworkV6;
					break;
			}
			IPHostEntry IPE = Dns.GetHostEntry(Host);
			if (Host != IPE.HostName) {
				IPE = Dns.GetHostEntry(IPE.HostName);
			}
			foreach (IPAddress IPA in IPE.AddressList) {
				if (IPA.AddressFamily == addrFamily) {
					return IPA.ToString();
				}
			}
			return string.Empty;
		}
	}
	public enum AddressType
	{
		IPv4,
		IPv6
	}
}
